...brought into existence. In illustration of this Mr. Darwin says, at page 67 (third edition) : — " There is no exception to the rule that every organic...rate that, if not destroyed, the earth would soon be peopled by the progeny of a single pair. Even slow-breeding man has doubled in twenty-five years, and...

....... Although some species may be now increasing more or less rapidly in numbers, all cannot do so, for the world would not hold them." " There is no...that if not destroyed the earth would soon be covered with the progeny of a single pair. Even slow-breeding man has doubled in twenty-five years ; and at...

...of animals live forever, not excepting man, the earth would soon be incapable of containing any of them. "There is no exception to the rule that every...destroyed, the earth would soon be covered by the offspring of a single pair. Linnaeus has calculated that if an animal plant produced only two seeds...

...marriage. Although some species may be now increasing, more or less rapidly, in numbers, all cannot do so, for the world would not hold them. There is no exception...being naturally increases at so high a rate, that it not destroyed, the earth would soon be covered by the progeny of a single pair. Even slow-breeding...

...species, or with individuals of distinct species, or with the physical condition of life. There being no exception to the rule that every organic being naturally increases at so high a rate that the earth would soon be covered with the progeny of a single pair — even slow- breeding man doubling...

...sentience. Life is always preserved at a high pressure. " There is no exception to the rule," says Darwin, " that every organic being naturally increases at so high a rate, that if not destroyed, this earth would soon be covered by the progeny of a single pair." Without respect to individuals,...

...unchecked would not of itself soon cover the earth. " There is no exception to the rule," says Darwin, " that every organic being naturally increases at so high a rate, that if not destroyed, this earth would soon be covered with the progeny of a single pair." The rate of increase is geometrical....

...Life is thus always preserved at a high pressure. " There is no exception to the rule," says Darwin, " that every organic being naturally increases at so high a rate, that if not destroyed this earth would soon be covered by the progeny of a single pair." It is this necessary destruction—by...

...struggle for existence, A struggle inevitably follows from the rule, to which there is no exception, that every organic being naturally increases at so...would soon be covered by the progeny of a single pair. The conflict is with individuals of the same species who want the same food, or with individuals of...

...doubt of the existence or of the importance of the law itself. Mr. Darwin illustrates it thus : — ' There is no exception to the rule that every organic...destroyed, the earth would soon be covered by the offspring of a single pair. Linnaeus has calculated that if an annual plant produced only two seeds...